Prefabricated assembly type widened light embankment

Abstract

The prefabricated assembly type broadened light embankment comprises a bottom plate, a top plate, an inclined plate, a vertical plate, a side plate and foam concrete, the bottom plate is laid on the compacted ground and fixed to an original embankment through an L-shaped steel plate, the vertical plate is connected with a fixing block of the bottom plate through a third clamping groove and can be matched with different widening amplitudes through splicing rabbets, the inclined plate is connected with the bottom plate and the vertical plate, the side plates are reinforced through the L-shaped steel plate and anchor rods, and anchor bars are arranged on the inner sides of the prefabricated parts. A cavity defined by the components is filled with foam concrete. A full-prefabricated assembly type structure is adopted, construction is convenient, fast and efficient, the integrity of the widened embankment and the original embankment is improved through multiple anchoring and splicing design, the settlement difference is effectively reduced through the light filling material, and different road widening requirements are met.

Description

Technical Field

[0001] This invention relates to the field of road widening technology, and more specifically, to a prefabricated assembled lightweight embankment for widening. Background Technology

[0002] With the continuous increase in traffic flow, the capacity of existing roads is no longer sufficient to meet the demand, making road widening and reconstruction an important means to improve traffic efficiency. Traditional embankment widening methods mostly employ on-site concrete pouring or backfilling with earth and stone, which have the following technical drawbacks: First, the on-site workload is large, the construction period is long, and it is significantly affected by weather, seriously impacting traffic flow; Second, the backfill material or cast-in-place structure has poor integrity with the original embankment, easily leading to differential settlement, causing pavement cracking and damage, and affecting the service life of the road; Third, traditional widening structures lack adaptability, making it difficult to flexibly adjust according to different widening ranges, and their large self-weight further exacerbates the risk of foundation settlement; Fourth, the dust and noise pollution generated during on-site construction is serious, failing to meet the requirements of green construction.

[0003] While some prefabricated assembly-type widening structures exist in existing technologies, they often suffer from problems such as simple connection methods, insufficient overall integrity, and lack of lightweight design, failing to effectively address the aforementioned core pain points. Summary of the Invention

[0004] The purpose of this invention is to solve the problems mentioned in the background art. This invention provides a prefabricated assembled widening lightweight embankment, which achieves high construction efficiency, strong structural integrity, low settlement risk, and adaptability to different widening needs.

[0005] The present invention adopts the following technical solution:

[0006] Precast assembled lightweight embankment widening, including bottom slab, inclined slab, vertical slab, side slab, top slab and foamed concrete;

[0007] The base plate is laid on the compacted surface of the widened area. The side of the base plate closest to the original embankment is fixedly connected to the original embankment by an L-shaped steel plate. The upper surface of the base plate is provided with a fixing block, a reserved groove and a reserved hole for reinforcing bars.

[0008] The top and bottom of the upright plate are provided with a third slot, which is engaged with the fixing block of the base plate. The side of the upright plate is provided with a splicing tongue and groove, and the upright plate is provided with a pin fixing hole.

[0009] The inclined plate is installed on the inner side of the vertical plate from top to bottom. The top of the inclined plate is provided with a first slot, the bottom of the inclined plate is provided with a second slot, the side of the inclined plate is provided with a retractable fixing pin, and the bottom of the inclined plate is provided with a fixing rib. The first slot is engaged with the fixing block of the top plate, the second slot is engaged with the fixing block of the bottom plate, the fixing rib is inserted into the pre-drilled hole of the reinforcing bar in the bottom plate, the retractable fixing pin is adapted to the pin fixing hole of the vertical plate, and the lower end of the inclined plate is embedded in the pre-drilled groove of the bottom plate.

[0010] The side plate is fixedly connected to the original embankment and bottom plate by an L-shaped steel plate, and the inner side of the side plate is provided with anchor rods;

[0011] The base plate, the original embankment, the vertical plate, and the top plate enclose a closed cavity, which is filled with foamed concrete.

[0012] Beneficial effects

[0013] High integrity and small settlement difference: This invention achieves a firm connection between prefabricated components and between the components and the original embankment through multiple connection methods such as L-shaped steel plates, fixing bars, and telescopic fixing pins; at the same time, the anchor bars and anchor rods penetrate deep into the foamed concrete to form an integrated structure of "component-filling material-original embankment", which greatly improves the integrity of the widened embankment, effectively reduces the settlement difference during later use, and avoids road surface cracking and damage.

[0014] Convenient and efficient construction: All core components are prefabricated in the factory and assembled on site, eliminating the need for large-scale on-site concrete pouring. The assembly process uses slots, pins and other structures to achieve rapid positioning and installation, significantly shortening the construction cycle and reducing on-site work and traffic occupation time.

[0015] Wide adaptability and flexible adjustment: Prefabricated assembled vertical panels can be spliced ​​together in multiple pieces through tongue and groove joints, which can flexibly adjust the embankment width according to the widening range of different roads, adapt to various widening needs, and eliminate the need to design components separately for different widening sizes, thus reducing project costs.

[0016] Lightweight and environmentally friendly, with reliable load-bearing capacity: Using foamed concrete as the filling material significantly reduces the self-weight compared to traditional earthwork backfilling, effectively reducing the bearing pressure on the foundation and minimizing the risk of settlement; foamed concrete has excellent environmental performance, and the factory production of prefabricated components can reduce on-site dust and noise pollution, meeting the requirements of green construction; at the same time, the combined structure of prefabricated components and foamed concrete can meet the load-bearing requirements after road widening, ensuring traffic safety.

[0017] Controllable quality and low operation and maintenance costs: Precast components are produced in factories in a standardized manner, and the production process is subject to strict quality control. The components have high dimensional accuracy and stable performance, avoiding quality problems such as cracking and insufficient strength that are prone to occur in on-site poured concrete. The integrated structural design reduces the frequency and cost of later maintenance and extends the service life of the road. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the installation of the base plate, inclined plate, and upright plate according to an embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram of an embodiment of the present invention after the side panel has been removed;

[0020] Figure 3 This is a schematic diagram from another perspective after removing the side panel in one embodiment of the present invention;

[0021] Figure 4 This is a partial schematic diagram of an embodiment of the present invention;

[0022] Figure 5 This is a schematic diagram of an embodiment of the present invention after removing the inclined plate and the vertical plate;

[0023] Figure 6 This is a schematic diagram of the original embankment;

[0024] Figure 7 This is a schematic diagram of an inclined plate according to an embodiment of the present invention;

[0025] Figure 8 This is a schematic diagram of a side plate according to an embodiment of the present invention;

[0026] Figure 9 This is a schematic diagram of a vertical plate according to an embodiment of the present invention;

[0027] Figure 10 This is a schematic diagram of the base plate according to an embodiment of the present invention. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0029] This embodiment provides a prefabricated assembled widening lightweight embankment, including a base plate 2, inclined plate 3, vertical plate 4, side plate 5, top plate 6, and foamed concrete;

[0030] The base plate 2 is laid on the compacted surface of the widened area. The side of the base plate 2 closest to the original embankment 1 is fixedly connected to the original embankment 1 by an L-shaped steel plate 13. The upper surface of the base plate 2 is provided with a fixing block 21, a reserved groove 23 and a steel bar reserved hole 24.

[0031] The top and bottom of the upright plate 4 are provided with a third slot 41, which is engaged with the fixing block 21 of the base plate 2. The side of the upright plate 4 is provided with a splicing tongue and groove 42, and the upright plate 4 is provided with a pin fixing hole 44.

[0032] The inclined plate 3 is installed on the inner side of the upright plate 4 from top to bottom. The top of the inclined plate 3 is provided with a first slot 31, the bottom of the inclined plate 3 is provided with a second slot 32, the side of the inclined plate 3 is provided with a retractable fixing pin 33, and the bottom of the inclined plate 3 is provided with a fixing rib 34. The first slot 31 is engaged with the fixing block 21 of the top plate 6, the second slot 32 is engaged with the fixing block 21 of the bottom plate 2, the fixing rib 34 is inserted into the steel bar reserved hole 24 of the bottom plate 2, the retractable fixing pin 33 is adapted to the pin fixing hole 44 of the upright plate 4, and the lower end of the inclined plate 3 is embedded in the reserved groove 23 of the bottom plate 2.

[0033] The side plate 5 is fixedly connected to the original embankment 1 and the bottom plate 2 by an L-shaped steel plate 13, and the inner side of the side plate 5 is provided with an anchor rod 51;

[0034] The base plate 2, the original embankment 1, the vertical plate 4, and the top plate 6 enclose a closed cavity, which is filled with foamed concrete.

[0035] Before installation, the road foundation needs to be treated, and the ground in the widened area of ​​the road needs to be cleaned and compacted to ensure that the bearing capacity of the foundation meets the design requirements.

[0036] During installation, first compact the ground, then install the base plate 2, adjust the level of the base plate 2, and then connect it to the original embankment 1 with bolts through L-shaped steel plates 13. There are multiple L-shaped steel plates 13, which are distributed at intervals. The specific number is set according to the width of the base plate 2.

[0037] According to the road widening range, several prefabricated assembled vertical panels 4 are spliced ​​together by splicing tongue and groove 42. The third slot 41 at the bottom of the spliced ​​vertical panel 4 is aligned with the fixing block 21 on the prefabricated base plate 2 and snapped into place from top to bottom to ensure that the vertical panel 4 is vertical and stable.

[0038] In one embodiment of the present invention, the front end of the upright plate 4 is further provided with a second reserved groove 43 for installing the inclined plate 3. The second reserved groove 43 provides a precise installation and positioning space for the inclined plate, effectively avoiding interference between components during assembly, and at the same time assisting the inclined plate to quickly align, significantly improving assembly efficiency and coaxiality of the connection between the upper and lower components.

[0039] In one embodiment of the present invention, the base plate 2, inclined plate 3, vertical plate 4, and top plate 6 are all provided with anchor bars 22, which extend into the foamed concrete. The anchor bars 22 enhance the mechanical interlocking and cooperative stress-bearing capacity between the precast components and the foamed concrete, preventing delamination and separation during the use of the structure, and further improving the overall load-bearing stability of the widened embankment.

[0040] In one embodiment of the present invention, the tongue and groove joint 42 is a concave-convex fit structure, and two adjacent upright plates 4 are sealed together by the tongue and groove joint 42. The concave-convex fit sealing structure can not only prevent rainwater and debris from seeping into the embankment and causing corrosion, but also enhance the lateral force transmission effect between the upright plates and improve the overall lateral displacement resistance of the widened part.

[0041] In one embodiment of the present invention, the anchor rods 51 are spaced apart along the height direction of the side plate 5, and the anchor rods 51 are anchored to the foamed concrete. The anchor rods 51 ensure that the anchoring force between the side plate and the foamed concrete is evenly distributed along the height direction, effectively offsetting the lateral earth pressure and the lateral force brought by the traffic load, and significantly improving the overturning resistance and lateral stiffness of the side plate.

[0042] In one embodiment of the present invention, the L-shaped steel plate 13 is provided with bolt holes, and is fixed to the original embankment 1, the bottom plate 2 and the side plate 5 respectively by high-strength bolts. The high-strength bolt connection has both firmness and disassembly, which not only ensures the shear and tensile strength of the connection node to cope with complex loads, but also provides convenience for later maintenance and component replacement, reducing operation and maintenance costs.

[0043] In one embodiment of the present invention, the bottom plate 2 and the top plate 6 are symmetrically arranged.

[0044] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and its improved concepts, should be covered within the scope of protection of the present invention.

Claims

1. A prefabricated, assembled, widened lightweight embankment, characterized by: It includes a base plate (2), an inclined plate (3), a vertical plate (4), a side plate (5), a top plate (6), and foamed concrete; The base plate (2) is laid on the compacted surface of the widened area. The side of the base plate (2) close to the original embankment (1) is fixedly connected to the original embankment (1) by an L-shaped steel plate (13). The upper surface of the base plate (2) is provided with a fixing block (21), a reserved groove (23) and a reserved hole for reinforcing bars (24). The top and bottom of the upright plate (4) are provided with a third slot (41), the third slot (41) is engaged with the fixing block (21) of the bottom plate (2), the side of the upright plate (4) is provided with a splicing tongue and groove (42), and the upright plate (4) is provided with a pin fixing hole (44). The inclined plate (3) is installed on the inner side of the upright plate (4) from top to bottom. The top of the inclined plate (3) is provided with a first slot (31), and the bottom of the inclined plate (3) is provided with a second slot (32). The side of the inclined plate (3) is provided with a retractable fixing pin (33), and the bottom of the inclined plate (3) is provided with a fixing rib (34). The first slot (31) is engaged with the fixing block (21) of the top plate (6), and the second slot (32) is engaged with the fixing block (21) of the bottom plate (2). The fixing rib (34) is inserted into the steel bar reserved hole (24) of the bottom plate (2). The retractable fixing pin (33) is adapted to the pin fixing hole (44) of the upright plate (4). The lower end of the inclined plate (3) is embedded in the reserved groove (23) of the bottom plate (2). The side plate (5) is fixedly connected to the original embankment (1) and the bottom plate (2) by an L-shaped steel plate (13), and the side plate (5) is provided with an anchor rod (51) on the inner side. The base plate (2), the original embankment (1), the vertical plate (4) and the top plate (6) enclose a closed cavity, which is filled with foamed concrete.

2. The prefabricated assembled widening lightweight embankment according to claim 1, characterized in that: The front end of the upright plate (4) is also provided with a second reserved groove (43) for installing the inclined plate (3).

3. The prefabricated assembled widening lightweight embankment according to claim 1, characterized in that: The bottom plate (2), inclined plate (3), vertical plate (4) and top plate (6) are all provided with anchor bars (22), which extend into the foamed concrete.

4. The prefabricated assembled widening lightweight embankment according to claim 1, characterized in that: The splicing tongue and groove (42) is a concave-convex fit structure, and two adjacent upright plates (4) are sealed and spliced ​​together through the splicing tongue and groove (42).

5. The prefabricated assembled widening lightweight embankment according to claim 1, characterized in that: The anchor rods (51) are spaced apart along the height direction of the side plate (5), and the anchor rods (51) are anchored to the foamed concrete.

6. The prefabricated assembled widening lightweight embankment according to claim 1, characterized in that: The L-shaped steel plate (13) is provided with bolt holes and is fixed to the original embankment (1), bottom plate (2) and side plate (5) respectively by high-strength bolts.

7. The prefabricated assembled widening lightweight embankment according to claim 1, characterized in that: The bottom plate (2) and the top plate (6) are arranged symmetrically.

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